#include <libmythtv/Bluray/mythbddecoder.h>

Inheritance diagram for MythBDDecoder:

Collaboration diagram for MythBDDecoder:

Public Member Functions
	MythBDDecoder (MythPlayer *Parent, const ProgramInfo &PGInfo, PlayerFlags Flags)

void	Reset (bool ResetVideoData, bool SeekReset, bool ResetFile) override

void	UpdateFramesPlayed (void) override

int	ReadPacket (AVFormatContext Ctx, AVPacket Pkt, bool &StorePacket) override

Public Member Functions inherited from AvFormatDecoder
	AvFormatDecoder (MythPlayer *parent, const ProgramInfo &pginfo, PlayerFlags flags)

	~AvFormatDecoder () override

	AvFormatDecoder (const AvFormatDecoder &)=delete

AvFormatDecoder &	operator= (const AvFormatDecoder &)=delete

void	SetEof (bool eof) override

MythCodecMap *	CodecMap (void)

void	CloseCodecs ()

void	CloseContext ()

void	Reset (bool reset_video_data, bool seek_reset, bool reset_file) override

int	OpenFile (MythMediaBuffer *Buffer, bool novideo, TestBufferVec &testbuf) override
	Open our file and set up or audio and video parameters. More...

bool	GetFrame (DecodeType Type, bool &Retry) override
	Demux, preprocess and possibly decode a frame of video/audio. More...

bool	IsLastFrameKey (void) const override

QString	GetCodecDecoderName (void) const override

QString	GetRawEncodingType (void) override

MythCodecID	GetVideoCodecID (void) const override

void	SetDisablePassThrough (bool disable) override
	Disables AC3/DTS pass through. More...

void	ForceSetupAudioStream (void) override

void	AddTextData (unsigned char *buf, int len, int64_t timecode, char type)

QString	GetTrackDesc (uint Type, uint TrackNo) override

int	SetTrack (uint Type, int TrackNo) override

int	ScanStreams (bool novideo)

int	FindStreamInfo (void)

int	GetNumChapters () override

void	GetChapterTimes (QList< std::chrono::seconds > &times) override

int	GetCurrentChapter (long long framesPlayed) override

long long	GetChapter (int chapter) override

bool	DoRewind (long long desiredFrame, bool discardFrames=true) override

bool	DoFastForward (long long desiredFrame, bool discardFrames=true) override
	Skips ahead or rewinds to desiredFrame. More...

void	SetIdrOnlyKeyframes (bool value) override

std::chrono::milliseconds	NormalizeVideoTimecode (std::chrono::milliseconds timecode) override

virtual std::chrono::milliseconds	NormalizeVideoTimecode (AVStream *st, std::chrono::milliseconds timecode)

int	GetTeletextDecoderType (void) const override

QString	GetXDS (const QString &Key) const override

QByteArray	GetSubHeader (uint TrackNo) override

void	GetAttachmentData (uint TrackNo, QByteArray &Filename, QByteArray &Data) override

bool	SetAudioByComponentTag (int Tag) override

bool	SetVideoByComponentTag (int Tag) override

virtual int	GetTeletextLanguage (uint Index)
	Returns TeleText language. More...

virtual int	GetCaptionLanguage (TrackType TrackType, int ServiceNum)
	Return ATSC Closed Caption Language. More...

virtual AudioTrackType	GetAudioTrackType (uint StreamIndex)

Public Member Functions inherited from DecoderBase
	DecoderBase (MythPlayer *parent, const ProgramInfo &pginfo)

virtual	~DecoderBase ()

void	SetRenderFormats (const VideoFrameTypes *RenderFormats)

virtual void	SetEofState (EofState eof)

EofState	GetEof (void)

void	SetSeekSnap (uint64_t snap)

uint64_t	GetSeekSnap (void) const

void	SetLiveTVMode (bool live)

void	SetProgramInfo (const ProgramInfo &pginfo)

virtual void	SetWatchingRecording (bool mode)

MythPlayer *	GetPlayer ()

std::chrono::milliseconds	TranslatePositionFrameToMs (long long position, float fallback_framerate, const frm_dir_map_t &cutlist)

uint64_t	TranslatePositionMsToFrame (std::chrono::milliseconds dur_ms, float fallback_framerate, const frm_dir_map_t &cutlist)

float	GetVideoAspect (void) const

virtual double	GetFPS (void) const

uint	GetRawBitrate (void) const
	Returns the estimated bitrate if the video were played at normal speed. More...

long long	GetFramesRead (void) const

long long	GetFramesPlayed (void) const

void	SetFramesPlayed (long long newValue)

virtual void	ResetPosMap (void)

virtual bool	SyncPositionMap (void)
	Updates the position map used for skipping frames. More...

virtual bool	PosMapFromDb (void)

virtual bool	PosMapFromEnc (void)
	Queries encoder for position map data that has not been committed to the DB yet. More...

virtual bool	FindPosition (long long desired_value, bool search_adjusted, int &lower_bound, int &upper_bound)

uint64_t	SavePositionMapDelta (long long first_frame, long long last_frame)

void	SetTranscoding (bool value)

bool	IsErrored () const

bool	HasPositionMap (void) const

void	SetWaitForChange (void)

bool	GetWaitForChange (void) const

void	SetReadAdjust (long long adjust)

void	SetDecodeAllSubtitles (bool DecodeAll)

virtual QStringList	GetTracks (uint Type)

virtual uint	GetTrackCount (uint Type)

virtual int	GetTrackLanguageIndex (uint Type, uint TrackNo)

int	GetTrack (uint Type)

StreamInfo	GetTrackInfo (uint Type, uint TrackNo)

int	ChangeTrack (uint Type, int Dir)

int	NextTrack (uint Type)

void	SaveTotalDuration (void)

void	ResetTotalDuration (void)

void	SaveTotalFrames (void)

void	TrackTotalDuration (bool track)

int	GetfpsMultiplier (void) const

MythCodecContext *	GetMythCodecContext (void)

Protected Member Functions
bool	IsValidStream (int StreamId) override

Protected Member Functions inherited from AvFormatDecoder
int	AutoSelectTrack (uint type) override
	Select best track. More...

void	ScanATSCCaptionStreams (int av_index)

void	UpdateATSCCaptionTracks (void)

void	UpdateCaptionTracksFromStreams (bool check_608, bool check_708)

void	ScanTeletextCaptions (int av_index)

void	ScanRawTextCaptions (int av_stream_index)

void	ScanDSMCCStreams (AVBufferRef *pmt_section)
	Check to see whether there is a Network Boot Ifo sub-descriptor in the PMT which requires the MHEG application to reboot. More...

int	AutoSelectAudioTrack (void)
	Selects the best audio track. More...

int	filter_max_ch (const AVFormatContext *ic, const sinfo_vec_t &tracks, const std::vector< int > &fs, enum AVCodecID codecId=AV_CODEC_ID_NONE, int profile=-1)

int	selectBestAudioTrack (int lang_key, const std::vector< int > &ftype)

void	DecodeCCx08 (const uint8_t *buf, uint buf_size)

void	InitVideoCodec (AVStream stream, AVCodecContext codecContext, bool selectedStream=false)

void	MpegPreProcessPkt (AVCodecContext codecContext, AVStream stream, AVPacket *pkt)
	Preprocess a packet, setting the video parms if necessary. More...

int	H264PreProcessPkt (AVCodecContext codecContext, AVStream stream, AVPacket *pkt)

bool	PreProcessVideoPacket (AVCodecContext codecContext, AVStream stream, AVPacket *pkt)

virtual bool	ProcessVideoPacket (AVCodecContext codecContext, AVStream stream, AVPacket *pkt, bool &Retry)

virtual bool	ProcessVideoFrame (AVCodecContext codecContext, AVStream Stream, AVFrame *AvFrame)

bool	ProcessAudioPacket (AVCodecContext codecContext, AVStream stream, AVPacket *pkt, DecodeType decodetype)

bool	ProcessSubtitlePacket (AVCodecContext codecContext, AVStream stream, AVPacket *pkt)

bool	ProcessRawTextPacket (AVPacket *Packet)

virtual bool	ProcessDataPacket (AVStream curstream, AVPacket pkt, DecodeType decodetype)

void	ProcessVBIDataPacket (const AVStream stream, const AVPacket pkt)
	Process ivtv proprietary embedded vertical blanking interval captions. More...

void	ProcessDVBDataPacket (const AVStream stream, const AVPacket pkt)
	Process DVB Teletext. More...

void	ProcessDSMCCPacket (const AVStream stream, const AVPacket pkt)
	Process DSMCC object carousel packet. More...

void	SeekReset (long long newkey, uint skipFrames, bool doFlush, bool discardFrames) override

bool	DecoderWillDownmix (const AVCodecContext *ctx)

bool	DoPassThrough (const AVCodecParameters *par, bool withProfile=true)

bool	SetupAudioStream (void)
	Reinitializes audio if it needs to be reinitialized. More...

void	SetupAudioStreamSubIndexes (int streamIndex)
	Reacts to DUAL/STEREO changes on the fly and fix streams. More...

void	RemoveAudioStreams ()
	remove audio streams from the context used by dvd code during title transitions to remove stale audio streams More...

void	HandleGopStart (AVPacket *pkt, bool can_reliably_parse_keyframes)
	Update our position map, keyframe distance, and the like. More...

bool	GenerateDummyVideoFrames (void)

bool	HasVideo ()

float	GetVideoFrameRate (AVStream Stream, AVCodecContext Context, bool Sanitise=false)

bool	OpenAVCodec (AVCodecContext avctx, const AVCodec codec)

void	UpdateFramesPlayed (void) override

bool	DoRewindSeek (long long desiredFrame) override

void	DoFastForwardSeek (long long desiredFrame, bool &needflush) override
	Seeks to the keyframe just before the desiredFrame if exact seeks is enabled, or the frame just after it if exact seeks is not enabled. More...

virtual void	PostProcessTracks (void)

int	DecodeAudio (AVCodecContext ctx, uint8_t buffer, int &data_size, AVPacket *pkt)

bool	FlagIsSet (PlayerFlags arg)

int	autoSelectVideoTrack (int &scanerror)

void	remove_tracks_not_in_same_AVProgram (int stream_index)

int	get_current_AVStream_index (TrackType type)

AVProgram *	get_current_AVProgram ()

bool	do_av_seek (long long desiredFrame, bool discardFrames, int flags)

Protected Member Functions inherited from DecoderBase
int	BestTrack (uint Type, bool forcedPreferred, int preferredLanguage=0)
	Determine the best track according to weights. More...

void	AutoSelectTracks (void)

void	ResetTracks (void)

void	FileChanged (void)

long long	ConditionallyUpdatePosMap (long long desiredFrame)

long long	GetLastFrameInPosMap (void) const

unsigned long	GetPositionMapSize (void) const

long long	GetKey (const PosMapEntry &entry) const

Private Member Functions
bool	DoRewindSeek (long long DesiredFrame) override

void	DoFastForwardSeek (long long DesiredFrame, bool &Needflush) override
	Seeks to the keyframe just before the desiredFrame if exact seeks is enabled, or the frame just after it if exact seeks is not enabled. More...

void	StreamChangeCheck (void) override

int	GetSubtitleLanguage (uint SubtitleIndex, uint StreamIndex) override
	Returns DVD Subtitle language. More...

int	GetAudioLanguage (uint AudioIndex, uint StreamIndex) override

long long	BDFindPosition (long long DesiredFrame)

Additional Inherited Members
Static Public Member Functions inherited from AvFormatDecoder
static bool	CanHandle (TestBufferVec &testbuf, const QString &filename)
	Perform an av_probe_input_format on the passed data to see if we can decode it with this class. More...

static int	GetMaxReferenceFrames (AVCodecContext *Context)

static void	streams_changed (void *data, int avprogram_id)

Static Public Member Functions inherited from DecoderBase
static uint64_t	TranslatePositionAbsToRel (const frm_dir_map_t &deleteMap, uint64_t absPosition, const frm_pos_map_t &map=frm_pos_map_t(), float fallback_ratio=1.0)

static uint64_t	TranslatePositionRelToAbs (const frm_dir_map_t &deleteMap, uint64_t relPosition, const frm_pos_map_t &map=frm_pos_map_t(), float fallback_ratio=1.0)

static uint64_t	TranslatePosition (const frm_pos_map_t &map, long long key, float fallback_ratio)

static AVPixelFormat	GetBestVideoFormat (AVPixelFormat Formats, const VideoFrameTypes RenderFormats)
	Find a suitable frame format that is mutually acceptable to the decoder and render device. More...

Static Protected Member Functions inherited from AvFormatDecoder
static void	av_update_stream_timings_video (AVFormatContext *ic)

Protected Attributes inherited from AvFormatDecoder
bool	m_isDbIgnored

AVCParser *	m_avcParser {nullptr}

AVFormatContext *	m_ic {nullptr}

MythCodecMap	m_codecMap

int	m_frameDecoded {0}

MythVideoFrame *	m_decodedVideoFrame {nullptr}

MythAVFormatBuffer *	m_avfRingBuffer {nullptr}

struct SwsContext *	m_swsCtx {nullptr}

bool	m_directRendering {false}

bool	m_gopSet {false}

bool	m_seenGop {false}
	A flag to indicate that we've seen a GOP frame. Used in junction with seq_count. More...

int	m_seqCount {0}
	A counter used to determine if we need to force a call to HandleGopStart. More...

QList< AVPacket * >	m_storedPackets

int	m_prevGopPos {0}

bool	m_gotVideoFrame {false}

bool	m_hasVideo {false}

bool	m_needDummyVideoFrames {false}

bool	m_skipAudio {false}

bool	m_allowedQuit {false}

uint32_t	m_startCodeState {0xffffffff}

std::chrono::milliseconds	m_lastVPts {0ms}

std::chrono::milliseconds	m_lastAPts {0ms}

std::chrono::microseconds	m_lastCcPtsu {0ms}

std::chrono::milliseconds	m_firstVPts {0ms}

bool	m_firstVPtsInuse {false}

PlayerFlags	m_playerFlags

MythCodecID	m_videoCodecId {kCodec_NONE}

int	m_maxKeyframeDist {-1}

int	m_averrorCount {0}

CC608Decoder *	m_ccd608 {nullptr}

CC708Decoder *	m_ccd708 {nullptr}

TeletextDecoder *	m_ttd {nullptr}

std::array< bool, 68 >	m_ccX08InPmt {}
	Lookup table for whether a stream was seen in the PMT entries 0-3 correspond to CEA-608 CC1 through CC4, while entries 4-67 corresport to CEA-708 streams 0 through 64. More...

std::array< bool, 68 >	m_ccX08InTracks {}
	Lookup table for whether a stream is represented in the UI entries 0-3 correspond to CEA-608 CC1 through CC4, while entries 4-67 corresport to CEA-708 streams 0 through 64. More...

QList< StreamInfo >	m_pmtTracks
	StreamInfo for 608 and 708 Captions seen in the PMT descriptor. More...

QList< TrackType >	m_pmtTrackTypes
	TrackType (608 or 708) for Captions seen in the PMT descriptor. More...

QList< StreamInfo >	m_streamTracks
	StreamInfo for 608 and 708 Captions seen in the caption stream itself but not seen in the PMT. More...

QList< TrackType >	m_streamTrackTypes
	TrackType (608 or 708) for Captions seen in the caption stream itself but not seen in the PMT. More...

InteractiveTV *	m_itv {nullptr}
	MHEG/MHP decoder. More...

uint8_t *	m_audioSamples {nullptr}

bool	m_disablePassthru {false}

AudioInfo	m_audioIn

AudioInfo	m_audioOut

bool	m_processFrames {true}

bool	m_streamsChanged { false }

bool	m_resetHardwareDecoders { false }

std::chrono::milliseconds	m_audioReadAhead {100ms}

QRecursiveMutex	m_avCodecLock

Protected Attributes inherited from DecoderBase
MythPlayer *	m_parent {nullptr}

ProgramInfo *	m_playbackInfo {nullptr}

AudioPlayer *	m_audio {nullptr}

MythMediaBuffer *	m_ringBuffer {nullptr}

double	m_fps {29.97}

int	m_fpsMultiplier {1}

int	m_fpsSkip {0}

uint	m_bitrate {4000}

int	m_currentWidth {640}

int	m_currentHeight {480}

float	m_currentAspect {1.33333F}

long long	m_framesPlayed {0}

long long	m_framesRead {0}

uint64_t	m_frameCounter {0}

MythAVRational	m_totalDuration {0}

int	m_keyframeDist {-1}

long long	m_lastKey {0}

long long	m_indexOffset {0}

MythAVCopy	m_copyFrame

bool	m_nextDecodedFrameIsKeyFrame { false }

EofState	m_atEof {kEofStateNone}

bool	m_trackTotalDuration {false}

bool	m_exitAfterDecoded {false}

bool	m_transcoding {false}

bool	m_hasFullPositionMap {false}

bool	m_recordingHasPositionMap {false}

bool	m_posmapStarted {false}

MarkTypes	m_positionMapType {MARK_UNSET}

QRecursiveMutex	m_positionMapLock

std::vector< PosMapEntry >	m_positionMap

frm_pos_map_t	m_frameToDurMap

frm_pos_map_t	m_durToFrameMap

QDateTime	m_lastPositionMapUpdate

uint64_t	m_seekSnap {UINT64_MAX}

bool	m_dontSyncPositionMap {false}

bool	m_livetv {false}

bool	m_watchingRecording {false}

bool	m_hasKeyFrameAdjustTable {false}

bool	m_errored {false}

bool	m_waitingForChange {false}

bool	m_justAfterChange {false}

long long	m_readAdjust {0}

int	m_videoRotation {0}

uint	m_stereo3D {0}

QRecursiveMutex	m_trackLock

bool	m_decodeAllSubtitles { false }

std::array< int, kTrackTypeCount >	m_currentTrack {}

std::array< sinfo_vec_t, kTrackTypeCount >	m_tracks

std::array< StreamInfo, kTrackTypeCount >	m_wantedTrack

std::array< StreamInfo, kTrackTypeCount >	m_selectedTrack

std::array< StreamInfo, kTrackTypeCount >	m_selectedForcedTrack

std::vector< int >	m_languagePreference
	language preferences for auto-selection of streams More...

MythCodecContext *	m_mythCodecCtx { nullptr }

MythVideoProfile	m_videoDisplayProfile

const VideoFrameTypes *	m_renderFormats { &MythVideoFrame::kDefaultRenderFormats }

Detailed Description

Definition at line 7 of file mythbddecoder.h.

Constructor & Destructor Documentation

◆ MythBDDecoder()

MythBDDecoder::MythBDDecoder	(	MythPlayer *	Parent,
		const ProgramInfo &	PGInfo,
		PlayerFlags	Flags
	)

Definition at line 9 of file mythbddecoder.cpp.

Member Function Documentation

◆ Reset()

void MythBDDecoder::Reset	(	bool	ResetVideoData,
		bool	SeekReset,
		bool	ResetFile
	)

overridevirtual

Reimplemented from DecoderBase.

Definition at line 21 of file mythbddecoder.cpp.

Referenced by StreamChangeCheck().

◆ UpdateFramesPlayed()

void MythBDDecoder::UpdateFramesPlayed ( void )

overridevirtual

Reimplemented from DecoderBase.

Definition at line 27 of file mythbddecoder.cpp.

Referenced by StreamChangeCheck().

◆ ReadPacket()

int MythBDDecoder::ReadPacket	(	AVFormatContext *	Ctx,
		AVPacket *	Pkt,
		bool &	StorePacket
	)

overridevirtual

Reimplemented from AvFormatDecoder.

Definition at line 106 of file mythbddecoder.cpp.

◆ IsValidStream()

bool MythBDDecoder::IsValidStream ( int StreamId )

overrideprotectedvirtual

Reimplemented from AvFormatDecoder.

Definition at line 14 of file mythbddecoder.cpp.

◆ DoRewindSeek()

bool MythBDDecoder::DoRewindSeek ( long long DesiredFrame )

overrideprivatevirtual

Reimplemented from DecoderBase.

Definition at line 37 of file mythbddecoder.cpp.

◆ DoFastForwardSeek()

void MythBDDecoder::DoFastForwardSeek	(	long long	desiredFrame,
		bool &	needflush
	)

overrideprivatevirtual

Seeks to the keyframe just before the desiredFrame if exact seeks is enabled, or the frame just after it if exact seeks is not enabled.

The seek is not made if framesPlayed is greater than the keyframe this would jump too. This means that frame-by-frame seeking after a keyframe must be done elsewhere.

If the seek is made the needflush parameter is set.

Parameters

desiredFrame	frame we are attempting to seek to.
needflush	set to true if a seek is made.

Reimplemented from DecoderBase.

Definition at line 48 of file mythbddecoder.cpp.

◆ StreamChangeCheck()

void MythBDDecoder::StreamChangeCheck ( void )

overrideprivatevirtual

Reimplemented from AvFormatDecoder.

Definition at line 59 of file mythbddecoder.cpp.

◆ GetSubtitleLanguage()

int MythBDDecoder::GetSubtitleLanguage	(	uint	,
		uint	StreamIndex
	)

overrideprivatevirtual

Returns DVD Subtitle language.

Reimplemented from AvFormatDecoder.

Definition at line 84 of file mythbddecoder.cpp.

◆ GetAudioLanguage()

int MythBDDecoder::GetAudioLanguage	(	uint	AudioIndex,
		uint	StreamIndex
	)

overrideprivatevirtual

Reimplemented from AvFormatDecoder.

Definition at line 95 of file mythbddecoder.cpp.

◆ BDFindPosition()

long long MythBDDecoder::BDFindPosition ( long long DesiredFrame )

private

Definition at line 135 of file mythbddecoder.cpp.

Referenced by DoFastForwardSeek(), and DoRewindSeek().

The documentation for this class was generated from the following files:

mythtv/libs/libmythtv/Bluray/mythbddecoder.h
mythtv/libs/libmythtv/Bluray/mythbddecoder.cpp

Public Member Functions

Protected Member Functions

Private Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ MythBDDecoder()

Member Function Documentation

◆ Reset()

◆ UpdateFramesPlayed()

◆ ReadPacket()

◆ IsValidStream()

◆ DoRewindSeek()

◆ DoFastForwardSeek()

◆ StreamChangeCheck()

◆ GetSubtitleLanguage()

◆ GetAudioLanguage()

◆ BDFindPosition()